Home repair . designing pool decks and patios: how to choose materials . other materials, like pavers and brick, are also popular choices, pros: depending on your budget, there are lots of wood varieties available. shower pans. (composite countertops are in section 12 35 00 casework) . pvc tub and shower surrounds are not acceptable alternatives to solid surface acrylic products. check the condition of the walls where panels are proposed. verify that they are . acrylic fiberglass-backed tubs may be acceptable. do not specify . interlocking panels grooved cladding .. carea® exterior wall cladding is an external insulation system including carea®. cortex® hidden fasteners . azek deck/rim joist covers should be installed using the same good building . use of non-cortex screws or non-cortex plugs.